>>> a3darr.reshape(1000)
...
RuntimeError: Unrecognized command: reshape<float64,3,1000>
>>> arr.reshape((1000,))
array([0.00000000000000000 0.00000000000000000 0.00000000000000000 ... 0.00000000000000000 0.00000000000000000 0.00000000000000000])

In [5]: ak.get_config()
Out[5]:
{'arkoudaVersion': 'v2023.01.11+792.ga4f8c5ae.dirty',
 'chplVersion': '2.4.0 (2dc533360e)',
 'ZMQVersion': '4.3.4',
 'HDF5Version': '1.12.1',
 'serverHostname': 'dev',
 'ServerPort': 5555,
 'numLocales': 1,
 'numPUs': 6,
 'maxTaskPar': 6,
 'physicalMemory': 16517623808,
 'distributionType': 'domain(unmanaged DefaultRectangularDom(1,int(64),one))',
 'LocaleConfigs': [{'id': 0,
   'name': 'dev',
   'numPUs': 6,
   'maxTaskPar': 6,
   'physicalMemory': 16517623808}],
 'authenticate': False,
 'logLevel': 'INFO',
 'logChannel': 'CONSOLE',
 'regexMaxCaptures': 20,
 'byteorder': 'little',
 'autoShutdown': False,
 'serverInfoNoSplash': False,
 'maxArrayDims': 3}